package com.zt.filter;



import com.zt.jwt.JwtUtils;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

//@Component
public class LoginFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();

        String path = request.getURI().getPath();
        if (path.contains("login")||path.contains("/getCode") || path.contains("/**")){
            return chain.filter(exchange);
        }


        //刷新token
        if (path.contains("refreshToken")){
            String token = request.getHeaders().getFirst("refreshToken");


            boolean refreshTokenBool = JwtUtils.validateToken(token);
            if (!refreshTokenBool){
                response.setRawStatusCode(499);
                return response.setComplete();
            }
            return chain.filter(exchange);
        }


        //认证token
        String token = request.getHeaders().getFirst("Authorization");
        if (!StringUtils.hasLength(token)){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }

        boolean authenticationTokenBool = JwtUtils.validateToken(token);
        if (!authenticationTokenBool){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
